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NEW
Electrostatic Sensor
SK Series
Hand-held type
SK-H050
A new solution for
anti-static applications
STATIC ELECTRICITY
HUMIDITY
Simultaneous
Measurement
In-line type
SK-050/1000
The most advanced static control
Pin-point measurement of both
static charge and humidity
In order to control static electricity in the workplace,
it is important to ensure that ambient humidity is
sufficient to reduce static charges. However, in most
cases humidity varies in different areas of the same
room. At many sites, while the humidity in a room
may be measured, it may not be possible to
measure the humidity at particular spots near
target workpieces. KEYENCE offers pin-point
measurement of humidity as well as static
charge for enhanced anti-static control.
Electrostatic sensor
Hand-held type
SK-H050
Electrostatic sensor
In-line type
SK-050/1000
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❙ Relationship between static electricity and humidity
Static electricity and humidity are correlated: when humidity exceeds
Relationship between humidity and static charge
(typical example)
when static charges build up easily due to colder, drier air, static-related
problems can be prevented by maintaining a constant level of humidity
around target workpieces.
Static voltage [kV]
60% RH, static charge is less likely to accumulate. Even during the winter,
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Easily charged
Not easily charged
3
2
1
0
20
40
60
80
100
Humidity [% RH]
❙ Humidity can vary in the same room depending on the location
Since humidity changes with temperature, humidity can vary in a room
depending on the location. Temperature is generally higher around
manufacturing systems, which tends to produce lower relative humidity.
Industry’s first
STATIC
ELECTRICITY HUMIDITY
Example of humidity difference between the area
close to a wall and the space around a machine
60%
RH
40%
RH
Simultaneous measurement
By measuring the static charge and humidity at the same time, you can more accurately identify whether a particular area is likely to have static-related
problems. This helps identify optimal anti-static measures, including humidification and other procedures such as installing an ionizer.
Best in its class
High-precision and wide-range measurements
The high-precision surface potential sensor mounted in our new anti-static resin allows the highest level of measuring accuracy in this model class.
KEYENCE can accommodate your needs from high-precision measurements of highly charged objects, up to ±50 kV with one-volt display resolution.
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SK-H050
Hand-held type
Ideal for on-the-spot
measurements
180 degree rotating head
for flexible measurement
Laser pointer to identify
the reference distance
The sensor head features a floating
structure that rotates 180 degrees.
Not only does this allow for easy
measurement in narrow spaces,
it offers improved shock resistance,
as shock resulting from a drop will not
transmit directly to the sensor.
Dual laser pointers make it simple to
identify the optimal measuring
distance for high precision
measurement.
Large, easy-to-read
liquid crystal display
Easy handling and
operation
The body features an ergonomic
design with a comfortable, easy-tohold shape.
A large, highly visible liquid crystal
display makes it easy for users to read
measurement results on the spot.
Charge monitor function
The SK-H050 features a charge monitor function that
measures static elimination speed and ion balance, both
of which indicate an ionizer’s static elimination capability.
This allows users to conveniently measure their ionizer’s
static elimination ability.
* An ionizer monitoring unit SK-H055, sold separately, is required.
Data storage function
Up to 100 sets of measurement data can be stored in the
SK-H050’s internal memory. The stored data can be
transferred to a computer via a USB cable and saved as
CSV data.
Computer
USB cable
* PC software can be downloaded free of charge from our website.
Transfer
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SK-050/1000
In-line type
Ideal for continuous measurement
Connectable main unit and
expansion units
Compact sensor head
The ultra-small design of the sensor
head allows it to be installed almost
anywhere, even in limited spaces
within a machine.
Up to eight amplifiers can be
connected with the combination of a
main unit and expansion units.
This reduces wiring in applications
that require multi-point measurements.
Clearly visible indicator
Large LED clearly indicates the status
even when the amplifier is not visible.
Wire-saving
Installation distance
correction
Measurement of static charges relies on the distance
between the sensor head and the target workpiece.
Measurement error can be corrected by entering the
installation distance into the amplifier.
Enter installation distance
Multiple output options
Independent 3-output judgment
Analog voltage/current
Communication unit
PROFINET
Main body
Standard specifications include an independent 3-output
judgment system and analog voltage/current output. By
using a communication unit, data from up to 8 connected
units can be transmitted simultaneously. The ability to
read data and re-write settings from PCs and PLCs
significantly reduces man-hours required for setup and
operation.
Measurement value corrected
PROFIBUS
EtherNet/IPTM
DeviceNetTM
CC-Link
RS-232C communication
BCD output
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Lineup/Options
❙ Hand-held type
❙ Options for hand-held type
Ground wire for
hand-held type
OP-87926
Ground wire
for ion monitoring unit
OP-87927
Main unit
Ionizer monitoring unit
SK-H050
SK-H055
Storage case
OP-87931
Carrying case
Wrist strap
OP-87928
Neck strap
OP-87929
❙ In-line type
The ground wires are
supplied with the main
unit.
They may also be
purchased separately
if lost or damaged.
OP-87930
❙ Options for in-line type
Sensor head connection cable
OP-87056 2 m 6.6' cable
OP-87057 5 m 16.4' cable
OP-87058 10 m 32.8' cable
OP-87059 20 m 65.6' cable
Sensor head
Amplifier unit (main)
SK-050
Amplifier unit (expansion)
SK-1000
L-shaped sensor head
connection cable
OP-87660 2 m 6.6' cable
OP-87661 5 m 16.4' cable
OP-87662 10 m 32.8' cable
OP-87663 20 m 65.6' cable
Ion balance monitoring unit
SK-1050
OP-87934
Dimensions
Unit: mm inch
SK-H050
When ionizer
monitoring unit
is attached
1.36"
34.5
3.06"
77.6
2.41"
61.3
83.9 3.30"
62.8
2.47"
63.7
2.51"
183.3
7.22"
197.8
7.79"
31.6
1.24"
47.7
1.88"
SK-050
22
0.87"
25.4
1.00"
6
16.57"
7
ø
0.12"
3
18.8
0.74"
42.4
1.67"
37.4
1.47"
0.69"
17.4
ax.
°m
135
21.5 0.85"
(15 0.59" min.)
6
28.3
1.11"
ø4.8 ø0.19"
15.5
0.61"
0.31"
7.9
18.5
0.73"
0.35" 8.9
9"
.1 8
ø0 ø4.
40
1.57"
2- 0.14
ø3 "
.5
103.5 4.07"
78.8 3.10"
0.45" 11.5
0.49" 12.5
ø4.7 ø0.19"
Cable length: 2 m 6.6'
SK-1000/1050
109.2 4.30" max. when cover is opened
17.6
0.69"
21.6 35.4 1.39"
0.79" 0.85"
20
76.3 3.00"
(15 0.59" min.)
Specifications
❙ Hand-held type
Model
Charge
potential
measurement
Temperature
measurement
Humidity
measurement
Charge
monitor
function *4
Measurement mode
Measuring distance
Measuring range
Measuring accuracy *1
Display resolution
Sampling cycle
Measuring range
Measuring accuracy *3
Display resolution
Sampling cycle
Measuring range
Measuring accuracy *3
Display resolution
Sampling cycle
Ion balance measuring range
Ion balance
Measuring accuracy *5
measuring mode
Measured voltage display resolution
Static elimination Charge voltage
time measuring Static elimination time display resolution
mode
Measuring time
Laser class
PC interface
Power supply
Operating time
Environmental Operating ambient temperature
resistance
Operating relative humidity *7
Material
Weight
Power supply
SK-H050
High-precision mode
Wide-range mode
25 mm 0.98"
100 mm 3.94"
±2 kV
±50 kV
±10 V
±100 V *2
0 to 999 V: 1 V, 1.00 to 9.99 kV: 0.01 kV. 10.0 kV and higher: 0.1 kV
Approx. 1.4 ms
0 to 40°C 32°F to 104°F
±1°C ±1.8°F
0.1°C 0.18°F
1s
10 to 85% RH
±5% RH
1% RH
1s
±1 kV
±10 V
1V
±1400 V
0.1 s
0 to 99 s
Class 1 Laser Product (IEC60825-1, FDA (CDRH) Part 1040.10 *6)
USB 2.0 Full Speed
2 AA alkaline dry-cell batteries
8 hours (in charge potential measuring mode)
0 to 40°C 32°F to 104°F (no freezing or condensation)
10 to 85% RH (no condensation)
SK-H050: PC-ABS, PC, SUS/SK-H055: PC, SUS, PTFE, PVC
SK-H050: Approx. 240 g, SK-H055: Approx. 220 g
*1 Within ±100 V when using high-precision mode; within ±1 kV when using wide-range mode. In other ranges, display value has an accuracy of ±10% (display value). Values are obtained from measurements with a response time of 0.8 seconds.
*2 Measuring accuracy is satisfied in the range of ±30 kV. *3 25°C 77°F, 50% RH. *4 SK-H055 is required. *5 Within ±100 V. In other ranges, display value has an accuracy of ±10% (display value).
*6 The laser classification for FDA (CDRH) is implemented based on IEC60825-1 in accordance with the requirements of Laser Notice No. 50. *7 10 to 60% RH when using SK-H055.
❙ In-line type sensor head
Model
Charge potential measurement
Temperature measurement
Humidity measurement
Ion balance measuring mode *5
Environmental resistance
SK-050
Measurement mode
Reference distance
Measuring distance
Measuring range *1
Measuring accuracy *2
Sampling cycle
Measuring range
Measuring accuracy *4
Display resolution
Sampling cycle
Measuring range
Measuring accuracy *4
Display resolution
Sampling cycle
Ion balance measuring range
Measuring accuracy *6
Display resolution
Operating ambient temperature
Operating relative humidity
High-precision mode
25 mm 0.98"
5 to 50 mm 0.20" to 1.97"
±2 kV
±10 V
Wide-range mode
100 mm 3.94"
60 to 120 mm 2.36" to 4.72"
±50 kV
±100 V *3
Approx. 1.4 ms
0 to 50°C 32°F to 122°F
±1°C ±1.8°F
0.1°C 0.18°F
1s
10 to 85% RH
±5% RH
0.1% RH
1s
±1 kV
±10 V
1V
0 to 50°C 32°F to 122°F (no freezing or condensation)
10 to 85% RH (no condensation)
Body case: PC, Metal parts: SUS, Cable: PVC
Approx. 35 g
Material
Weight
*1 If the distance to the sensing target is shorter than the reference distance, even if the conditions are within the measurable range, measurement cannot be performed up to the upper limit of the measuring range.
*2 Within ±100 V when using high-precision mode; within ±1 kV when using wide-range mode. In other ranges, display value has an accuracy of ±10% (display value). Values are obtained from a mean of 256 measurements.
*3 Measuring accuracy is satisfied in the range of ±30 kV. *4 25°C 77°F, 50% RH. *5 OP-87934 is required. *6 Within ±100 V. In other ranges, display value has an accuracy of ±10% (display value).
❙ In-line type amplifier unit
Model
Type
Main unit/expansion unit
Display resolution
Display
Display range
Analog voltage output *1
Analog current output *1
Zero-shift input
Timing input
Control input *2
Reset input
Bank input
Judgment output
Control output *3
Alarm output
Power supply voltage *4
Power supply
Power consumption (excluding load current of each output) *5
Operating ambient temperature
Environmental
resistance
Operating relative humidity
Material
Weight (including accessories)
SK-1000
SK-1050
DIN rail mounting
Main unit
Expansion Unit
0.001 kV
±99.999 kV to 99 kV (4-level selection available)
±5 V, 1 to 5 V, 0 to 5 V, output impedance 100 Ω
4 to 20 mA, maximum load resistance 350 Ω
N/A
Non-voltage input
Open collector output (NPN/PNP switching, N.O./N.C. switching)
Open collector output (NPN/PNP switching, N.C.)
10 to 30 VDC, including 10% ripple (P-P)
Supplied from main unit
1650 mW or below (55 mA or below with 30 V)
1170 mW or below (39 mA or below with 30 V)
0 to 50°C 32°F to 122°F (no freezing or condensation)
10 to 85% RH (no condensation)
Body case and front cover: PC, Key top: POM, Cable: PVC
Approx. 150 g
Approx. 140 g
*1 ±5 V, 1 to 5 V, 0 to 5 V, or 4 to 20 mA selected for use.
*2 Inputs are assigned to the four external input lines. Non-voltage input rating: ON voltage 2 V or lower, OFF current 0.02 mA or lower. Voltage input rating: maximum input rating is 30 V, ON voltage 7.5 V or higher, OFF current 0.05 mA or below.
*3 NPN open collector output rating: maximum 50 mA/ch (20 mA/ch when expansion units are added) 30 V or below, residual voltage 1 V or below (1.5 V or below when adding 6 or more expansion units, including main unit). PNP open collector
output rating: maximum 50 mA/ch (20 mA/ch when expansion units are added) below power supply voltage, residual voltage 2 V or below (2.5 V or below when adding 6 or more expansion units, including main unit).
*4 Use 20 to 30 V as power supply voltage when 6 or more expansion units, including main unit, are to be used. *5 When connecting 8 units for DL connection, maximum power is consumption 11.3 W.
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KEYENCE static eliminators lineup
BAR TYPE
Ultra High-Speed Sensing Ionizer
SJ-HA Series
Type
Method
Ion balance
Features
Bar type with built-in
controller 360 mm - 3000 mm
14.17" - 118.11"
Pulse AC
±30 V
Excellent static elimination
and low maintenance.
BLOWER TYPE
Wide Area Sensing Ionizer
SJ-F2000/F5000 Series
Type
Method
Ion balance
Features
Blower type
Pulse AC
±5 V
High-speed,
high-precision blower for
tabletop or equipment use.
SPOT TYPE
Ultra-Small Integrated Sensing Ionizer
SJ-M Series
Type
Method
Ion balance
Features
CALL
TOLL
FREE
T O C O N TA C T Y O U R L O C A L O F F I C E
1-888-KEYENCE
1 - 8 8 8 - 5 3 9 - 3 6 2 3
www.keyence.com
Spot type
Pulse AC
±15 V
Flexible mounting and
attachment options.
SAFETY INFORMATION
Please read the instruction manual carefully in
order to safely operate any KEYENCE product.
KEYENCE CORPORATION OF AMERICA
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PHONE: 888-539-3623 FAX: 855-539-0123 E-mail: keyence@keyence.com
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E-mail: keyencemexico@keyence.com
KA1a-1094
The information in this publication is based on KEYENCE’s internal research/evaluation at the time of release and is subject to change without notice.
Copyright (c) 2014 KEYENCE CORPORATION. All rights reserved.
SKseries-KA-C-US 1114-1 611942 Printed in U.S.A.
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